DE2927027A1 - AGENT FOR LIQUID PARAFFINING YARN - Google Patents

Description

292702?

-y- i

HOECHST AKTIENGESELLSCHAFT HOE 79 / F 171 Dr.Ot / hka Agent for liquid waxing of yarns

In order to be able to use dyed or undyed staple fiber yarns for knitting, it is common to use them during a rewinding process with a solid block of paraffin treat. A certain amount of solid paraffin is applied to the fiber and is used for further processing necessary low coefficient of friction, i.e. high smoothness. It is understandable that this Process of so-called dry waxing in the Practice is not unproblematic. Depending on the pressure between the fiber and the paraffin block, the layer of dry paraffin vary. The solid paraffin can sublimate away in subsequent heating processes (ironing, fixing) and thus tend to bloom. The rigid dry paraffin gives Although the material has sufficient smoothness for further processing, it has an actual softening effect not connected to its application. For dry paraffin articles there is therefore a need to in a subsequent work step these articles by applying to soften an additional plasticizer.

.

The task is thus to provide staple fiber yarns with a uniformly low level that is necessary for further processing Friction, i.e. high smoothness combined with satisfactory softness. The task is solved by that an agent for liquid waxing of yarns follows Composition is used:

a) 5 - 20% paraffin, melting range 45 - 60 ° C

b) 2-10% of one or more alkylimidazolines of Formula I.

- (CH.

O30062 / Q4S5

where RC ₁₂ -C22 "alkyl, alkenyl or hydroxyalkyl,

R _{1 is} hydrogen or C ₁ -C ₂₂ ~ saturated or unsaturated aliphatic or aromatic acyl, R _{2 is} hydrogen, C ₁ -C ₄ -alkyl or hydroxyalkyl, 5 η numbers from 2-6 and

X is a halogen, C ₁ -C "-alkyl su If at-, C ₁ -C ₇₁ -dialkylphosphate or a C.-C ₄ -alkyl carboxylate anion.

10 c) 1 - 5% of one or more amine oxides of the general formula II

R «.0

N ^ (II)

15 R ₁ (CH ₀ CH ₀ O) _1n -R ₀

where R Cg-C ₁₂ ~ alkyl or alkenyl,

R _{0 is} hydrogen or C ₁ -C, -alkyl and 20 η denotes numbers from 0 to 6 and

d) 5-20% of one or more polyglycol ethers of the formula III

25 RO (C ₂ H ₄ O) _n - H (III)

where RC ₀ -C ₁ "-alkyl or alkenyl and ο 1 ο

η mean numbers from 3-12

and the remainder missing 100% by weight is water. 30th

An agent of the following composition is preferably used:

8-12% paraffin (mp 50-53 ^Q C), 35 3-6% of an imidazoline of the formula I, where

RC -Γ ¹ V ^ _{1 0} ^ "t ρ

Τ? C - C

^K 1 ^C 16 ^C 22

030082/0465

292702?

- ■ »" ■ s

Rp hydrogen,

X ~ Cl "or CH ₃ COO" and

η mean 2 or 3,

3-5% of an amine oxide of the formula II, wherein R Cg-C ₁ g alkyl or alkenyl,

R ₁ and R _{2 are} methyl and

η mean zero
6-10% of a polyglycol ether of the formula III, where

R coconut alkyl (C ₁₂ -C . _G -alkyl and alkenyl), η denotes numbers from 4-8,

and the remainder missing 100% by weight is water.

The paraffin dispersion is produced by intensive Mixing of all components at temperatures of over 70 -80 ° C, whereby a particular advantage should be emphasized that you don't need a homogenizer.

The clear dispersions are stable and can be brought to the desired final concentration in an aqueous solution with cold water Liquor to be diluted. These paraffin dispersions, which when diluted with water, are storage-stable and shear-stable fine dis- Persions can be used instead of solid dry paraffin to paraffinize staple fiber yarns made from native and synthetic fibers are used. They can be referred to as pseudocationically dispersed systems and are characterized by high substantivity when used in long fleets. The pH of the paraffin dispersions when used it is advantageous at 3-6 and is made with acids set to this value.

The paraffin dispersions are applied in the usual way Dyeing machines of the type used for dyeing textile yarns. Work is carried out in a fleet ratio from 1: 5 to 1:40 at temperatures of 10 - 90 ° C. The application is advantageously carried out after the dyeing process, by treating the yarn with a dispersion of the type described above in dilute aqueous form after rinsing

62/0485

292702?

_{delt f} which contains 0.1-2% by weight, preferably 0.3-1% by weight of the agent of the composition described above, based on the weight of the yarn.

The yarns paraffinized in this way show next to the desired smoothness a pleasant soft feel, which makes the application of an additional plasticizer superfluous power. Thanks to the dispersants built into the systems, there is no electrostatic interference that could interfere with knitting Charging. The paraffin dispersions according to the invention also do not contain any organic solvents that are harmful to the environment, especially when working in open apparatus. that could be harmful. They only contain the cheap paraffin as a sliding component and need for the smoothness imparting and the softening effect no additional components, such as fatty acid esters, which in the Are expensive compared to paraffin. The paraffin dispersions according to the invention show a high substantivity, connected with a high network force, which enables the application even in short test times and at low temperatures.

The dispersions according to the invention give yarns a high anti-static effect combined with high smoothness. 25th

The dispersions described in the following examples are prepared by simply mixing the individual components. Percentages are to be understood as percent by weight. EO means ethylene oxide. 30th

example 1

Paraffin dispersion consisting of

15 parts of paraffin (melting point 50 - 53 ° C), 5 parts of an imidazoline of the formula I, where R is a mixture of 45% C. ^ and 55% C ₁₇ -

Alkyl,
R .. a mixture of 45% Cg and 55% C ^ -

030062/0465

R- hydrogen, η 2

Χ ~ CH ₃ CO "means parts coconut alkyldimethylamine oxide, 10 parts coconut fatty alcohol χ 5 EO, parts E water. PH value: approx. 4

Example 2
Paraffin dispersion consisting of parts of paraffin (melting point 50-53 ° C., parts of the imidazoline according to Example 1, parts of oleyl diethylamine oxide, parts of oleyl alcohol χ 7 EO, 100 parts of E water.

pH value: approx. 4.2

Example 3

Paraffin dispersion consisting of 13 parts of paraffin (melting point 52 - 54 ° C), Parts of an imidazoline of the formula I, where

R a mixture of 5% C ₁₃ , - 30% C ₁₅ ,

35% C ₁₇ alkyl and 30% Cj _? -Alkenyl, R ₁ a mixture of 5% C ₁₄ , 30% C ₁₆ , 35% C ₁₈ -ACyI and 30% Cjg-acenyl,

R _{2 is} hydrogen, η 2 and

X ~ acetate "means parts of an amine oxide of the formula II, where R is a mixture of 70% C ₁₂ and 30% C ₁₄ -

Alkyl,

R ₁ and R _{2 are} methyl and η 0 and parts coconut fatty alcohol χ 6 EO 6 parts oleyl alcohol χ 5 EO parts E water. pH value: 4.5

030C162 / 0465

292702?

Example 4

Paraffin dispersion consisting of

14 parts of paraffin (melting point 52 ° -54 ° C.), 2.4 parts of the imidazoline used in Example 1, 0.6 parts of an imidazoline of the formula I, where

R a mixture of 5% C ₁₃ , 30% C ₁₅ ,

35% C ₁₇ -AIkVl and 30% C.., - Alkenyl, R ₁ and R2 hydrogen, η 2 and
X ~ CH ₃ COO "means

6 parts of coconut alkyldimethylamine oxide and 10 parts of C ₁₂ / C ^ alcohol χ 10 EO, 100 parts of E water.

pH value: 4.1
15th

Example 5

In a cross-bobbin dyeing machine under HT conditions Yarns made from 100% PES after prior dispersion dyeing and rinsing at 40 ° C for 30 minutes in the liquor ratio Treated 1:10 at pH 5.5 with the dispersions described in Examples 1-4 in dilute form. These dispersions were diluted to such an extent that the concentration of components a) to d) in the liquor was based on the weight of the yarn, was 2% by weight. After drying, the PES material had a smooth, soft handle, as can only be achieved for dry paraffinic yarns with the addition of a cationic softener.

The smoothness of the wet paraffin yarn is very high. Of the Coefficient of friction, measured in DE-OS 24 16 430 besc described measuring arrangement, resulted in the measuring speeds 20 and 100 m / minute the following values:

Mean according to μ values

Example 1 0.183-0.193

Example 2 0.190-0.201

Example 3 0.181-0.190

Example 4 0.193-0.203

030062/0485

292702?

The material could be easily wexterverarbexten and exhibited a uniform, homogeneous surface appearance after knitting.

The following antistatic values in megohms were found on the knitwear at 22 ° C and 65% r. F. measured:

Means according to meg-ohms

Example 1 40

Example 2 30

Example 3 '30

Example 4 25

Similar beneficial effects are achieved if instead of PES yarns, wool yarns, cotton yarns or PAC yarns or Mixtures are used.

030062/0465

ORIGINAL INSPECTED

Claims (3)

HOE 79 / F 171 Claims; Preparations for the wet waxing of yarns consisting of a) 5 - 20% paraffin, melting range 45 - 60 ° C, b) 2-10% of one or more alkylimidazolines of Formula I. CHr CH- l " where RC ₁ ^ -C ₂ O-AlkYl, alkenyl or hydroxyalkyl, R ₁ hydrogen or C.-C "" - saturated or unsaturated aliphatic or aromatic acyl, R- hydrogen, C ₁ -C - alkyl or hydroxyl alkyl, η numbers from 2 to 6, and X is a halogen, Cj-C ^ alkyl sulfate, Cj-C ₄ dialky! phosphate or a C ^ -C ^ -alkyl- " mean carboxylate anion; c) 1 - 5% of one or more amine oxides of the general formula II where R Cg-C ₁₂ ~ alkyl or alkenyl, R ₂ denotes hydrogen or C.-C.-alkyl and η denotes numbers from zero to 6; d) 5 - 20% of one or more polyglycol ethers Formula III
35 030062/0465 ORIGINAL INSPECTED RO- (C ₂ H ₄ O) _n - H (III) where R is Cg-C- _g -alkyl- or alkenyl and η is numbers from 3-12; and the remainder missing 100% by weight is water 2. Agent according to claim 1 consisting of 8-12% paraffin (melting point 50-54 _{° C) 3-6% of an imidazoline of the formula I, where RC 12} -C _{18 -alkyl,} R ₂ hydrogen,
X ~ Cl ", and
η is 2 or 3; 3 - 5% of an amine oxide of the formula II, where R Cg-C ₁ g alkyl or alkenyl, R and R ₂ is methyl and η zero; 6 - 8% of a polyglycol ether of the formula III, with RC ₁₂ -C _1g -alkyl and alkenyl (coconut alkyl) and η denote numbers from 4-8; and the remainder missing 100% by weight is water. 3. Process for wet waxing of native and synthetic Yarns, characterized in that the yarns in the exhaust process at pH 3 to 6 in the flot ten ratio 1: 5 to 1:40 at 10-90 ° C treated with an agent according to claim 1 or 2. Ö30062 / 046S